/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.activiti.validation.validator.impl;

import java.util.List;

import org.activiti.bpmn.model.BpmnModel;
import org.activiti.bpmn.model.EventDefinition;
import org.activiti.bpmn.model.IntermediateCatchEvent;
import org.activiti.bpmn.model.MessageEventDefinition;
import org.activiti.bpmn.model.Process;
import org.activiti.bpmn.model.SignalEventDefinition;
import org.activiti.bpmn.model.TimerEventDefinition;
import org.activiti.validation.ValidationError;
import org.activiti.validation.validator.Problems;
import org.activiti.validation.validator.ProcessLevelValidator;

/**

 */
public class IntermediateCatchEventValidator extends ProcessLevelValidator {

  @Override
  protected void executeValidation(BpmnModel bpmnModel, Process process, List<ValidationError> errors) {
    List<IntermediateCatchEvent> intermediateCatchEvents = process.findFlowElementsOfType(IntermediateCatchEvent.class);
    for (IntermediateCatchEvent intermediateCatchEvent : intermediateCatchEvents) {
      EventDefinition eventDefinition = null;
      if (!intermediateCatchEvent.getEventDefinitions().isEmpty()) {
        eventDefinition = intermediateCatchEvent.getEventDefinitions().get(0);
      }

      if (eventDefinition == null) {
        addError(errors, Problems.INTERMEDIATE_CATCH_EVENT_NO_EVENTDEFINITION, process, intermediateCatchEvent, "No event definition for intermediate catch event ");
      } else {
        if (!(eventDefinition instanceof TimerEventDefinition) && !(eventDefinition instanceof SignalEventDefinition) && !(eventDefinition instanceof MessageEventDefinition)) {
          addError(errors, Problems.INTERMEDIATE_CATCH_EVENT_INVALID_EVENTDEFINITION, process, intermediateCatchEvent, "Unsupported intermediate catch event type");
        }
      }
    }
  }

}
